Terri is the Marine Assistant here at Rothera she is from South Africa and is down here for 2.5 years. This picture is of her on the CTD boat Terra Nova. CTD casts provide data on conductivity (which can be converted to salinity), pressure (which equates to depth) and temperature. At the same time the flourometer provides data on total chlorophyll biomass, and the PAR (photosynthetically active radiation) sensor on the underwater light climate. The CTD instrument is deployed to 500m using a winch, which is mounted on Terra Nova.

As well as CTD twice a week she is in charge of the sediment panels, loggers and does collections. She has done over 130 dives at Rothera.